@article {6863,
title = {The food source of Sargasso Sea leptocephali},
journal = {Marine Biology},
volume = {167},
year = {2020},
month = {Jan-05-2020},
issn = {0025-3162},
doi = {10.1007/s00227-020-3662-6},
url = {http://link.springer.com/10.1007/s00227-020-3662-6},
author = {Miller, Michael J. and Hanel, Reinhold and Eric Feunteun and Tsukamoto, Katsumi}
}
@article {6724,
title = {Microbial functional structure and stable isotopic variation of leptocephali across three current zones in the western South Pacific},
journal = {Progress in Oceanography},
volume = {182},
year = {2020},
pages = {102264},
abstract = {The ecology of leptocephali remains poorly known but they appear to feed on marine snow that can vary spatially and temporally according to the food web dynamics. This study provided new information about the position of leptocephali within the functional structure of microbial plankton and other food web components of the western South Pacific (WSP) region at a large geographic scale including the New Caledonia, Fiji, and Samoa islands. The hydrographic structure varied with latitude, and nutrient levels were generally low but somewhat variable. Stable isotopic signatures were examined in relation to the 3 current zones of the eastward flowing South Equatorial Countercurrent (SECC; north), the westward South Equatorial Current (SEC; mid-latitudes), and the eastward South Tropical Countercurrent (STCC; south), and all zones were found to be primarily based on a heterotrophic planktonic functioning that were co-limited by inorganic nitrogen and phosphorus, with biomasses of planktonic groups varying with depth. Isotopic signatures of leptocephali were compared to the signatures of other mesozoplankton, micronekton, and Trichodesmium components of the food web, and in relation to the signatures of particulate organic matter (POM) that varied among the 3 collection depths. The isotopic signatures of six taxa of leptocephali, other taxonomic groups and POM showed interesting variability according to latitude and among some stations. The presence of Trichodesmium at the surface in the STCC zone influenced the isotopic signatures of POM and thus the signatures of leptocephali. The signatures of leptocephali were therefore linked with the overall food web and were consistent with the larvae feeding on marine snow components of POM. The two apparent groups of leptocephali with different isotopic signatures that have also been observed in other oceanic areas may be explained by feeding behavior at different depths or on different types of marine snow.},
keywords = {Isotopic signature, Leptocephali, Meso-macro-zooplankton, Microbial loop, Micronekton, POM, Western South Pacific},
issn = {0079-6611},
doi = {10.1016/j.pocean.2020.102264},
url = {http://www.sciencedirect.com/science/article/pii/S0079661120300021},
author = {Leopold Ghinter and Christine Dupuy and Michael J. Miller and Alexander Carpentier and Christel Lefran{\c c}ois and Anthony Acou and Jun Aoyama and Mari Kuroki and Li{\'e}nart, Camilla and Shun Watanabe and Katsumi Tsukamoto and Tsuguo Otake and Eric Feunteun}
}
@article {6736,
title = {Resolving the trade-off between silver eel escapement and hydropower generation with simple decision rules for turbine shutdown},
journal = {Journal of Environmental Management},
volume = {261},
year = {2020},
pages = {110212},
abstract = {Hydropower plants are commonly reported as a major cause of the worldwide decline of freshwater eels (Anguillidae), so that management solutions are urgently needed to mitigate their impacts. Where downstream passage solutions are complex to develop, turbine shutdown appears as an effective management solution to protect silver eels during their river migration toward spawning areas. However, the definition of operational decision rules for turbine shutdown is challenging due to the duality between the benefit for eel conservation and the concomitant cost in term of hydropower production. Here, we proposed a decision framework for turbine shutdown based on simple hydrological criteria to guide negotiations between stakeholders toward a trade-off between silver eel escapement and hydropower generation. Eel migration was assumed to be triggered by a minimum river flow associated with a minimum discharge pulse, so that threshold values can be directly implemented as decision rules for turbine shutdown. To estimate relevant thresholds, a generic methodological framework was developed to generate alternative decision rules from data collected at hydropower plants, which can include telemetry surveys and estimates of eel abundance. A multiple-criteria decision analysis was then conducted to rank alternatives and to determine the best compromise between promoting silver eel escapement and limiting turbine shutdown duration. Graphic outputs can help stakeholders to understand the competitive interests between eel conservation and hydropower production, while visually identifying a range of consensual alternatives to support negotiations in the choice of operational thresholds. The method was illustrated for three river systems in Europe featured by distinct hydrological conditions and can be applied in other areas, providing that eel monitoring surveys and flow data are available.},
keywords = {Conservation policy, Decision rules, Multiple-criteria decision, Turbine shutdown},
issn = {0301-4797},
doi = {https://doi.org/10.1016/j.jenvman.2020.110212},
url = {http://www.sciencedirect.com/science/article/pii/S030147972030147X},
author = {Teichert, Nils and St{\'e}phane T{\'e}tard and Thomas Trancart and Eric Feunteun and Anthony Acou and Eric de Oliveira}
}
@article {6723,
title = {Stable species boundaries despite ten million years of hybridization in tropical eels},
journal = {Nature Communications},
volume = {11},
year = {2020},
month = {Jan-12-2020},
doi = {10.1038/s41467-020-15099-x},
url = {https://www.nature.com/articles/s41467-020-15099-x},
author = {Barth, Julia M. I. and Gubili, Chrysoula and Matschiner, Michael and T{\o}rresen, Ole K. and Watanabe, Shun and Egger, Bernd and Han, Yu-San and Eric Feunteun and Sommaruga, Ruben and Jehle, Robert and Robert Schabetsberger}
}
@article {6732,
title = {Swinging boat moorings: Spatial heterogeneous damage to eelgrass beds in a tidal ecosystem},
journal = {Estuarine, Coastal and Shelf Science},
volume = {235},
year = {2020},
pages = {106581},
abstract = {Seagrass meadows are currently known to be subjected to huge physical disturbances including boat moorings in shallow bays. We aimed to identify the impact of permanent swing mooring on the fast-growing seagrass Zostera marina in a mega-tidal area. Coupling the hydrodynamic MARS3D model to simulate mooring chain movements and in situ measurements of plant traits, we analyzed the structural responses of the eelgrass bed to scraping disturbance in the western English Channel (France). A comparison of the results with a reference site without any permanent swing boat mooring showed a significant impact on eelgrass structure (shoot density, leaf size, leaf dry weight), depending on the direction and distance from the mooring. Zostera marina was absent close to the mooring fixation point in three out of the four directions we evaluated. Beyond 5\ m, the canopy height remained lower than in the reference site, most likely due to regular disturbances by mooring chains. Conversely, shoot density beyond 5\ m was higher than in the reference site. This adaptive response counter-balanced the decrease in canopy height at these distances. The fluctuations of the structure of the eelgrass cover (number of shoots, leaf length) at a small spatial scale was clearly in accordance with the scraping intensity simulated by the MARS3D model. The tidal currents coupled to tidal amplitude variability imply a small-scale heterogeneous effect of permanent mooring on the benthic compartment, previously undetected by an aerial survey. The present results highlight the interest of coupling approaches so as to understand how physical pressure influences fast-growing species traits. The resulting important modifications could imply a more functional impact such as biodiversity loss and carbon sequestration, which is beyond the scope of the present paper.},
keywords = {Anthropogenic disturbances, Boat mooring, Modeling approach, SCUBA-Diving, Seagrass ecology},
issn = {0272-7714},
doi = {https://doi.org/10.1016/j.ecss.2020.106581},
url = {http://www.sciencedirect.com/science/article/pii/S027277141930068X},
author = {Vincent Ouisse and Irina Marchand-Jouravleff and Annie Fiandrino and Eric Feunteun and Fr{\'e}d{\'e}ric Ysnel}
}
@article {6730,
title = {When {\textquotedblleft}safe{\textquotedblright} dams kill: Analyzing combination of impacts of overflow dams on the migration of silver eels},
journal = {Ecological Engineering},
volume = {145},
year = {2020},
pages = {105741},
abstract = {1. The drastic decline in European eel\ Anguilla anguilla\ stock is now widely recognized. However, while various causes for this decline have been identified, the relative importance of each cause remains unclear.

2. During the catadromous migration of silver eels, the negative impact of dams is frequently highlighted, but mainly for powered dams (with turbines) or where connectivity is completely ruptured. Mechanical impact due to turbine blades is often considered the most important cause of mortality of silver eels during downstream migration. Consequently, non-powered dams equipped with spillways are often considered safe for the passage of migrating silver eels.

3. We hypothesized that, to understand the negative impacts of dams, a much wider context must be considered than turbine mortality alone. Using an acoustic telemetry survey of silver eels, we demonstrated the negative effects of non-powered dams on downstream migration.

4. Five main impacts on eel populations were highlighted: (i) the attenuation or loss of triggering factors, leading to an absence of or delay in migration; (ii) extra delays and extra distances travelled when crossing the dam; (iii) extra energetic costs of the additional distance travelled as result of exploring the dam and the reservoir to find other escape passages; (iv) the selection of a more risky behavioral phenotype, i.e., bold eels; and (v) direct blocking once migration has started. Mortality was evaluated as a supplementary impact. Some of these effects (attenuation of triggers, extra delays to cross the dam) might be more important than the same effect from powered dams, probably due to the constant high water discharge required for turbines that facilitate the passage of eels.

5. As these {\textquotedblleft}safe{\textquotedblright} dams are very widespread, they must be considered a potential threat to effective eel conservation.},
keywords = {Acoustic telemetry, Migration, mortality, Non-powered dams, Silver eels, Turbines drinking water intake},
issn = {0925-8574},
doi = {https://doi.org/10.1016/j.ecoleng.2020.105741},
url = {http://www.sciencedirect.com/science/article/pii/S092585742030029X},
author = {Thomas Trancart and Alexandre Carpentier and Anthony Acou and Fabien Charrier and Virgile Mazel and Valentin Danet and Eric Feunteun}
}
@article {6742,
title = {Behaviour of endangered European eels in proximity to a dam during downstream migration: Novel insights using high accuracy 3D acoustic telemetry},
journal = {Ecology of Freshwater Fish},
volume = {29},
year = {2019},
pages = {266-279},
abstract = {River infrastructures such as weirs, hydropower stations or water reservoirs represent obstructions to migration for diadromous fish. Knowledge of accurate behaviour of fish in front of such structures is required to protect migrants from hazardous areas, guide them towards safe passage or adapt structure to improve the escapement. We developed and made available a method to process acoustic telemetry data based on Time Difference Of Arrival analysis to accurately locate tagged fish. Improved accuracy allows the detection of escape routes and description of dam-crossing tactics. Sixteen tagged eels were tracked with high accuracy (1{\textendash}2\ m) and 1 location min-1 frequency during their exploration period on reaching the dam. Two migration routes (spillways and bottom compensation flow pipe) were used by 77\% and 23\% of eels respectively. Spillways were the preferred route, but a median of 16\ days were required to pass the dam versus 1.1\ days via the compensation pipe. A minimal water crest of 40\ cm was required for passage via spillways. Eels passing through the compensation pipe were exclusively nocturnal and mainly explored the bottom of the dam. Eels passing through spillways explored the whole dam area by night and day, and were not attracted to the compensation pipe entrance. With global warming, more frequent drought periods are expected, potentially leading to decreased opportunities for eels to migrate across safer dams by spillways. To conserve this endangered species, dam management strategies that account for expected hydrologic conditions and distinct exploration behaviours are needed.},
keywords = {3D acoustic telemetry, dam, diadromous fish, downstream migration, European eel},
doi = {10.1111/eff.12512},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/eff.12512},
author = {Thomas Trancart and Carpentier, Alexandre and Anthony Acou and Danet, Valentin and Elliott, Sophie and Eric Feunteun}
}
@article {6741,
title = {Changes in marine phytoplankton diversity: Assessment under the Marine Strategy Framework Directive},
journal = {Ecological Indicators},
volume = {102},
year = {2019},
pages = {265 - 277},
abstract = {The Marine Strategy Framework Directive requires EU Member States to assess the Good Environmental Status (GES) of their marine waters in a coherent and strategic manner. For the regional assessment of biodiversity, the OSPAR Intersessional Coordination Group of Biodiversity Assessment and Monitoring (ICG-COBAM) provides substantial advice. Through expert working groups, phytoplankton indicators are currently being developed to measure the state and the change in pelagic diversity, to quantify food web dynamics and to measure the extent of eutrophication impacts. We developed a multi-metric indicator that is compliant with the common OSPAR indicator {\textquotedblleft}Changes in plankton diversity{\textquotedblright} (PH3). The aim was to describe the structure of the phytoplankton community (alpha diversity) and to detect significant temporal changes (beta diversity) to evaluate the health of pelagic habitats. In this pilot study, we used three coastal time-series in the Western Channel and the north of the Bay of Biscay (North Atlantic, France) to test the efficiency and the performance of several existing diversity indices. We validated two alpha diversity indices, namely the Menhinick Index (D) and the Hulburt Index (δ), based on their complementary ecological information, their strong relationship with habitat characteristics, and their relative ease of interpretation for stakeholders. Temporal shifts or rate of change in community structure were detected by the Local Contributions to Beta Diversity index (LCBD; a beta diversity measure). For the years where significantly high LCBD values were found, the Importance Value Index (IVI) was calculated to potentially identify the taxa (genus) responsible for the {\textquotedblleft}unusual{\textquotedblright} community structure. For example, at the Ouest Loscolo site in 2008, an elevated LCBD (0.45) coincided with a high dominance value (Hulburt{\textquoteright}s Index) caused by the occurrence of a monospecific bloom of Leptocylindrus spp. (IVI = 73\%) in July (2.22 {\texttimes} 106 cells L-1) and October (8 {\texttimes} 106 cells L-1). In this way, PH3 informs on different aspects of phytoplankton diversity from a community to a genus level. At the current stage of development, however, PH3 acts as a {\textquotedblleft}surveillance{\textquotedblright} rather than an operational indicator since the relationship to GES is not directly tracked. In the future, by additional testing of PH3 and extending the geographical scope, the robustness of the assessment could be further determined across the OSPAR Maritime Area.},
keywords = {community composition, Good environmental status, Indicators, Marine policy, MSFD, OSPAR, Pelagic habitat, Plankton},
issn = {1470-160X},
doi = {https://doi.org/10.1016/j.ecolind.2019.02.009},
url = {http://www.sciencedirect.com/science/article/pii/S1470160X19301190},
author = {Rombouts, I. and Nathalie Simon and Anais Aubert and T. Cariou and Eric Feunteun and Laurent Guerin and M. Hoebeke and A. McQuatters-Gollop and F. Rigaut-Jalabert and Luis Felipe Artigas}
}
@article {6014,
title = {Contrasting biodiversity of eel larvae across the central Indian Ocean subtropical gyre},
journal = {Deep Sea Research Part II: Tropical Studies in Oceanography},
volume = {161},
year = {2019},
pages = {120{\textendash}131},
abstract = {The unique semi-enclosed Indian Ocean basin includes large Mascarene\ Plateau\ banks, offshore\ coral-reef\ islands, seasonal equatorial current jets, and cross-basin westward South Equatorial Current (SEC) flow, making it interesting for studying long larval-duration eel larvae (leptocephali) and regional eel biodiversity. Three surveys for\ leptocephali\ (in 2003, 2006, 2010) included sampling west of the Mascarene Plateau (west), a major survey and other stations off Sumatra and Java (east), and 2 cross-basin transects across the SEC. The highest numbers of leptocephali species were observed along Sumatra (2003: ~143 species; 2006: 72 species) and south of Java (2010: 69), with intermediate numbers being collected in the western Indian Ocean (2006: 71; 2010: 53) compared to low numbers in the hydrographically variable offshore zones (2006, 2010: 3{\textendash}27). The larger\ continental shelf\ areas along Sumatra including the Mentawai Islands provide more coral reef and other habitats for species such as congrid, muraenid, ophichthid, and chlopsid eels compared to the Mascarene Plateau banks. Some larvae in these areas get transported offshore, but the majority of offshore larvae were of Nemichthyidae and Serrivomeridae mesopelagic eels that were spawning across the basin. Habitat differences between the southern Mascarene Plateau and Sumatra and southern Indonesia along the edge of the high biodiversity Coral Triangle likely explain the higher biodiversity of eel larvae observed along the western side of the basin, which for the Congridae and Ophichthidae included more species than observed previously within the central Indonesian Seas. In addition to local spawning, seasonal currents likely transport larger larvae towards Sumatra from the north or west and larvae may enter the basin from the Indonesian\ Throughflow\ in the east, but it is unknown if equatorial jets or the SEC can transport larvae across the whole basin.},
doi = {doi.org/10.1016/j.dsr2.2018.02.012},
url = {https://www.sciencedirect.com/science/article/pii/S0967064517304393},
author = {Miller, Michael J and Wouthuyzen, Sam and Eric Feunteun and Aoyama, Jun and Watanabe, Shun and Syahailatua, Augy and Kuroki, Mari and Robinet, Tony and Hagihara, Seishi and Otake, Tsuguo and others}
}
@article {6734,
title = {Distribution and life history trait models indicate vulnerability of skates},
journal = {Progress in Oceanography},
volume = {181},
year = {2019},
pages = {102256},
abstract = {Elasmobranchs are k-strategy species with low reproduction rate and slow growth lending to increased anthropogenic vulnerability. Specific management measures to improve the conservation of elasmobranchs can be problematic due to insufficient information on their biology and ecology. Here, three sympatric skates occupying north-eastern Atlantic waters, which have differing conservation status were studied within ICES divisions 4.c, 7.d{\textendash}e, 7.f{\textendash}h and 8a{\textendash}b and d. Fisheries-dependent data on skate bycatch and a series of environmental variables were used to model spatio-temporal differences in habitat use between the three species. Raja undulata, the undulate ray (IUCN red listed as {\textquoteleft}Endangered{\textquoteright}) was observed to have a coastal distribution within the English Channel and the Bay of Biscay (ICES division 7.d{\textendash}e and 8.a{\textendash}b). Raja clavata, the thornback ray ({\textquoteleft}Near threatened{\textquoteright}), had a broader distribution with higher presence in the eastern English Channel and the southern North Sea (ICES division 7.e and 4.c). Raja montagui, the spotted ray{\textquoteright}s probability of presence ({\textquoteleft}Least concerned{\textquoteright}) was higher off the coast of southern Ireland (ICES division 7.g). Seasonal and life-history trait differences were also observed. From the fisheries-dependent data, wider skate distributions than previously studied were modelled. Although the species do co-occur, spatio-temporal differences between these species were observed. This study contributes to a greater understanding of skate habitat during their different life history stages, and indicates reasons for R. undulata{\textquoteright}s increased vulnerability than R. clavata and R. montagui. Information from the distribution models could be used for specific spatio-temporal management measures. Better understanding of the distribution of species can also help reduce bycatch of protected species such as R. undulata.},
keywords = {Distribution modelling, Elasmobranchs, Fisheries management, Habitat, IUCN red list species, Life history traits},
issn = {0079-6611},
doi = {https://doi.org/10.1016/j.pocean.2019.102256},
url = {http://www.sciencedirect.com/science/article/pii/S0079661119304367},
author = {Sophie A.M. Elliott and Alexandre Carpentier and Eric Feunteun and Thomas Trancart}
}
@article {6737,
title = {Distribution of anguillid leptocephali and possible spawning areas in the South Pacific Ocean},
journal = {Progress in Oceanography},
volume = {180},
year = {2019},
pages = {102234},
abstract = {Seven South Pacific anguillid eel species live from New Guinea to French Polynesia, but their spawning areas and life histories are mostly unknown despite previous sampling surveys. A July{\textendash}October 2016 research cruise was conducted to study the spawning areas and times, and larval distributions of South Pacific anguillid eels, which included a short 155{\textdegree}E station-line northeast of New Guinea and five long transects (5{\textendash}25{\textdegree}S, 160{\textdegree}E{\textendash}140{\textdegree}W) crossing the South Equatorial (SEC) and other currents. This survey collected nearly 4000 anguilliform leptocephali at 179 stations using an Isaacs-Kidd Midwater Trawl accompanied by 104 CTD casts. Based on morphometric observations and DNA sequencing, 74 anguillid leptocephali were collected, which in the southern areas included 29 larvae of six species: Anguilla bicolor pacifica, A. marmorata, A. australis, A. reinhardtii, A. megastoma,and A. obscura (all anguillid species of the region were caught except A. dieffenbachii). Small A. australis (9.0{\textendash}16.8\ mm) and A. reinhardtii (12.4, 12.5\ mm) leptocephali were collected south of the Solomon Islands, other A. australis (10.8{\textendash}12.0\ mm) larvae were caught northwest of Fiji along with an A. obscura (20.0\ mm) larva, and an A. marmorata (7.8\ mm) larva was collected near Samoa. Considering collection sites, larval ages from otolith analysis, and westward SEC drift, multiple spawning locations occurred from south of the Solomon Islands and the Fiji area (16{\textendash}20\ days old larvae) to near Samoa (19\ days old larva) during June and July in areas where high-salinity Subtropical Underwater (STUW, 150\ m depth) and the warm, low-salinity surface Fresh Pool were present. Five long hydrographic sections showed the strong Fresh Pool in the west and the STUW formation area in the east.},
keywords = {Early life history, Freshwater eels, Migration, otolith, South Pacific, Spawning},
issn = {0079-6611},
doi = {https://doi.org/10.1016/j.pocean.2019.102234},
url = {http://www.sciencedirect.com/science/article/pii/S0079661119304148},
author = {Mari Kuroki and Michael J. Miller and Eric Feunteun and Pierre Sasal and Timothy Pikering and Yu-San Han and Elisabeth Faliex and Anthony Acou and Aur{\'e}lie Dessier and Robert Schabetsberger and Shun Watanabe and Tatsuya Kawakami and Hiroaki Onda and Takatoshi Higuchi and Aya Takeuchi and Madoka Shimizu and Chinthaka A. Hewavitharane and Seishi Hagihara and Terumasa Taka and Shingo Kimura and Noritaka Mochioka and Tsuguo Otake and Katsumi Tsukamoto}
}
@book {Prouzet201969,
title = {The European eel (Anguilla anguilla) in France: An example of close cooperation among researchers and fishers to study and manage an endangered species},
series = {Oceanography Challenges to Future Earth: Human and Natural Impacts on our Seas},
year = {2019},
note = {cited By 0},
pages = {69-93},
doi = {10.1007/978-3-030-00138-4_7},
url = {https://www.springerprofessional.de/en/the-european-eel-anguilla-anguilla-in-france-an-example-of-close/16484968},
author = {Prouzet, P. and Amilhat, E. and Boisneau, C. and Boisneau, P. and Eric Feunteun and Michelet, N.}
}
@article {6745,
title = {High genetic diversity and lack of pronounced population structure in five species of sympatric Pacific eels},
journal = {Fisheries Management and Ecology},
volume = {26},
year = {2019},
pages = {31-41},
abstract = {Understanding the population structure of tropical anguillids residing in the Pacific is vital for their conservation management. Here, the population genetic structure of five sympatric freshwater eels (Anguilla marmorata Quoy \& Gaimard, A.\ megastoma Kaup, A.\ obscura Steindachner, A.\ reinhardtii G{\"u}nther and A.\ australis Richardson) across 11 western South Pacific (WSP) islands was investigated based on partial nucleotide sequences of the mtDNA control region and the nuclear GTH2b genes of 288 newly collected samples jointly with existing sequences. WSP anguillids are characterised by overall high levels of genetic diversity. Both mtDNA and nuclear sequences provided no evidence for distinct geographic clines or barriers in any of the species across the WSP. The occurrence of admixed individuals between A.\ marmorata and A.\ megastoma was confirmed, and a new possible occurrence of a further species was revealed (A.\ interioris Whitley on Bougainville Island). All species showed evidence for demographic population growth in the Pleistocene, and a subsequent population reduction for A.\ megastoma. Common spawning grounds and mixing of larvae by ocean currents could promote the lack of pronounced isolation by distance, a finding that has significant implications for the future management of anguillids in the area.},
keywords = {genetic homogeneity, hybridisation, recruitment, Spawning, Sympatry, tropical eels},
doi = {10.1111/fme.12287},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/fme.12287},
author = {Gubili, Chrysoula and Robert Schabetsberger and Poellabauer, Christine and Bates, Becky and Wagstaff, Rosa M. and Woodward, Lewis M. and Sichrowsky, Ursula and Scheck, Alexander and Boseto, David T. and Eric Feunteun and Anthony Acou and Jehle, Robert}
}
@article {6744,
title = {Dynamics of particulate organic matter composition in coastal systems: Forcing of spatio-temporal variability at multi-systems scale},
journal = {Progress in Oceanography},
volume = {162},
year = {2018},
month = {Jan-03-2018},
pages = {271 - 289},
issn = {00796611},
doi = {10.1016/j.pocean.2018.02.026},
url = {https://www.sciencedirect.com/science/article/abs/pii/S0079661117302100},
author = {Li{\'e}nart, Camilla and Savoye, Nicolas and David, Val{\'e}rie and Ramond, Pierre and Rodriguez Tress, Paco and Hanquiez, Vincent and Marieu, Vincent and Aubert, Fabien and Aubin, S{\'e}bastien and Bichon, Sabrina and Boinet, Christophe and Bourasseau, Line and Bozec, Yann and Br{\'e}ret, Martine and Elsa Breton and Caparros, Jocelyne and Cariou, Thierry and Pascal Claquin and Conan, Pascal and Corre, Anne-Marie and Costes, Laurence and Muriel Crouvoisier and Del Amo, Yolanda and Derriennic, Herv{\'e} and Dindinaud, Fran{\c c}ois and Duran, Robert and Durozier, Ma{\"\i}a and Devesa, J{\'e}r{\'e}my and Ferreira, Sophie and Eric Feunteun and Garcia, Nicole and Geslin, Sandrine and Emilie Grossteffan and Gueux, Aurore and Guillaudeau, Julien and Guillou, Ga{\"e}l and Jolly, Orianne and Lachauss{\'e}e, Nicolas and Lafont, Michel and Lagadec, V{\'e}ronique and Lamoureux, J{\'e}zabel and Lauga, B{\'e}atrice and Lebreton, Beno{\^\i}t and Lecuyer, Eric and Lehodey, Jean-Paul and Leroux, C{\'e}dric and St{\'e}phane L{\textquoteright}Helguen and Mac{\'e}, Eric and Maria, Eric and Mousseau, Laure and Antoine Nowaczyk and Pineau, Philippe and Petit, Franck and Pujo-Pay, Mireille and Raimbault, Patrick and Rimmelin-Maury, Peggy and Rouaud, Vanessa and Sauriau, Pierre-Guy and Sultan, Emmanuelle and Susperregui, Nicolas}
}
@article {6751,
title = {Migration behaviour and escapement of European silver eels from a large lake and wetland system subject to water level management (Grand-Lieu Lake, France): New insights from regulated acoustic telemetry data},
journal = {Ecology of Freshwater Fish},
volume = {27},
year = {2018},
pages = {570-579},
abstract = {Current knowledge about the downstream migration of sexually mature European eels (Anguilla\ anguilla) remains incomplete, particularly in still water habitats such as lakes and wetlands subject to water level management. However, for the management of this endangered species, it is important to understand migration dynamics, and contribution to the breeding stock. This study aimed to assess the parameters that trigger and guide the migration of silver eels in the largest floodplain lake and associated wetlands in France (the sluice regulated Grand-Lieu Lake). A telemetry survey of 50 acoustic and PIT-tagged female silver eels was performed during the 2015{\textendash}2016 migration period. We deployed a novel telemetric approach, using receivers to delimit several restricted virtual boxes to determine the instantaneous location of individuals and to transform simple discrete telemetric data into presence/absence data. The low numbers leaving the lake centre are probably explained by the lack of orienting water flows or other environmental clues, but whilst the fate of 34\% (17/50) of the tagged eels is unknown, 18\% (9/50) were caught by commercial fishermen. Modelling showed that detections were not clearly associated with environmental factors typically involved in riverine migrations (e.g. current velocity, atmospheric pressure and temperature) but they were particularly associated with higher and increasing water levels and, for eels exiting the lake, a sharp increase when sluice gates were opened to an effective gap of \>75\ cm. It is concluded that management of water levels and sluice gate opening during the migration period might aid escapement of silver eels.},
keywords = {Anguilla~anguilla, cues, silver eel migration, triggers},
doi = {10.1111/eff.12371},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/eff.12371},
author = {Thomas Trancart and Eric Feunteun and Danet, Valentin and Carpentier, Alexandre and Mazel, Virgile and Charrier, Fabien and Druet, Morgan and Anthony Acou}
}
@article {5925,
title = {Phylogeography of Eleotris fusca (Teleostei: Gobioidei: Eleotridae) in the Indo-Pacific area reveals a cryptic species in the Indian Ocean.},
journal = {Conservation genetics},
volume = {19},
year = {2018},
pages = {1025-1038},
abstract = {

\ Indo-Pacific insular freshwater systems are mainly dominated by amphidromous species. Eleotris fusca\ is a widespread one, its life cycle is characterised by a marine pelagic larval phase allowing the species to disperse in the ocean and then to recruit to remote island rivers. In the present study, the population structure of E. fusca\ over its Indo-Pacific distribution range (Western Indian Ocean to French Polynesia, Pacific Ocean) was evaluated. We analysed a section of mitochondrial COI\ of 557 individuals sampled from 28 islands to visualise the population structure. Haplotypes diversity (Hd) was between 0.458 and 1 and, nucleotide diversity (π) was between 0.001 and 0.02. Two distinct genetic groups appeared, one in the Indian Ocean and the other in the Pacific Ocean (FST\ mean = 0.901; 5.2\% average divergence). Given these results, complete mitogenomes (mtDNA) were sequenced and combined with the nuclear Rhodopsin (Rh) gene for a subset of individuals. The two phylogenetic trees based on each analysis showed the same genetic pattern: two different groups belonging to the Indian and the Pacific oceans (6.6 and 1.6\% of divergence for mtDNA and Rh gene respectively), which supported species level differentiation. These analyses revealed the presence of two sister species confounded until present under the name of Eleotris fusca. One of them is cryptic and endemic of the Indian Ocean and the other one is the true E. fusca, which keeps, nevertheless, its status of widespread species.

},
keywords = {Amphidromous, Complete mitogenome, freshwater fish, Nuclear gene},
author = {Marion Mennesson and Bonillo, C{\'e}line and Eric Feunteun and Philippe Keith}
}
@article {6752,
title = {Silver eel downstream migration in the River Rhine, route choice, and its impacts on escapement: A 6-year telemetry study in a highly anthropized system},
journal = {Ecological Engineering},
volume = {123},
year = {2018},
pages = {202 - 211},
abstract = {Several routes are available for the downstream migration of silver eels in the river Rhine system. Very different effects on migration success can result from this choice, such as speed and migration duration or escapement rate. We studied the downstream migration of silver eels in a river section with two different routes. The first route is the initial and old riverbed, with two dams equipped with two rather small or medium sized hydropower plants (HPPs) located at the beginning and at the exit of the bypass stretch. Both HPPs have small bar spacing (10 mm and 20 mm, respectively) and the second HPP has two downstream bypasses. The second route is a power canal, supplying four major HPPs (maximum discharge capacity = 1400 m3 s-1) and a nuclear power plant with cooling water. Firstly, this study focused on highlighting the factors influencing route choice. Secondly, we focused on the consequences of this choice. We demonstrate that water current management in the old riverbed at the study site had a 40\% higher negative effect on eel survival than that by a consecutive passage in four turbines.},
keywords = {Escapement, Migration, Path selection, Rhine river, Silver-eel, Telemetry},
issn = {0925-8574},
doi = {https://doi.org/10.1016/j.ecoleng.2018.09.002},
url = {http://www.sciencedirect.com/science/article/pii/S0925857418303318},
author = {Thomas Trancart and St{\'e}phane T{\'e}tard and Anthony Acou and Eric Feunteun and Fr{\'e}d{\'e}ric Schaeffer and Eric de Oliveira}
}
@article {6746,
title = {Stable isotopes as tracers can reveal resource allocation in juvenile golden gray mullets (Liza aurata, Risso, 1810)},
journal = {Journal of Experimental Marine Biology and Ecology},
volume = {503},
year = {2018},
month = {Jan-06-2018},
pages = {72 - 79},
abstract = {Studies on the nutritional physiology of predator fish in the marine environment have contributed to our understanding of how they adapt to the environment and how they have evolved. Despite the fact that herbivorous and omnivorous fish species are numerous and play a significant role in the ecosystem, there is little information on how they process nutrients and how these are allocated to different tissues. This information could be particularly important for the juvenile stages, when small-sized fish are under high predation pressure and have a limited capability to intake and digest large quantities of food. The mullet Liza aurata ingests surface sediment and obtains its nutritional requirements from the organisms associated with the sediment, including microalgae and bacteria or small invertebrates. This paper examines how the carbon and nitrogen derived from benthic micro-organisms are allocated to the liver and muscle tissues of newborn (young-of-the-year, YOY) and one-year-old (OYO) individuals. After the animals were left feeding on 13C-enriched microalgae and 15N-enriched bacteria for 1 h, we traced the 13C and 15N in the liver and muscle tissues as well as in the blood and the gut. The YOY allocated 99\% of the 13C and 88\% of the 15N to the muscles, while the liver had a negligible amount of tracers (0.4\% and 11\% for 13C and 15N). Conversely, in the OYO experiment, the tracers were uniformly distributed throughout the muscle and liver (57\% of 13C and 45\% of 15N were found in the muscle, whereas 43\% of 13C and 55\% of 15N were in the liver). Negligible amounts were traced in the blood (\<0.1\%), while a part of the tracers was not assimilated and remained in the gut of both YOY and OYO fish. These results indicated a size-related shift in resource allocation during first year of growth of L. aurata, probably related to changes in the survival strategies among juveniles. Our results also indicated that stable isotope enrichment can be a helpful tool for studying resource allocation in fish.},
issn = {00220981},
doi = {10.1016/j.jembe.2018.01.009},
url = {https://www.sciencedirect.com/science/article/pii/S0022098117301971},
author = {Como, S. and Carpentier, A. and Rossi, F. and Christine Dupuy and Richard, P. and Eric Feunteun and Lefran{\c c}ois, C.}
}
@article {5907,
title = {Checklist of the marine fishes from metropolitan {France}},
journal = {Cybium},
year = {2017},
doi = {10.26028/cybium/2017-414-006},
url = {http://sfi-cybium.fr/fr/checklist-marine-fishes-metropolitan-france},
author = {Philippe B{\'e}arez and Patrice Pruvost and Eric Feunteun and S.P. Igl{\'e}sias and Patrice Francour and Causse, Romain and De Mazieres J. and Tercerie, S and Bailly, Nicolas}
}
@article {4751,
title = {{Cross-taxon congruence in the rarity of subtidal rocky marine assemblages : No taxonomic shortcut for conservation monitoring}},
journal = {Ecological Indicators},
volume = {77},
year = {2017},
pages = {239{\textendash}249},
abstract = {The implementation of protection strategies such as the European Marine Strategy Framework Directive (2008/56/EC) is impeded for subtidal rock bottom habitats because of high sampling costs due to a very wide taxonomic diversity, and a lack of suitable evaluation tools to estimate their conservation importance. In this study, we seek to provide an evaluation procedure by (1) investigating the distribution of rarity among subtidal rock bottom phyla; (2) searching for potential surrogate phyla with a cross-taxon congruence approach based on their rarity; (3) proposing an appropriate multi-phyla indicator to evaluate the importance of subtidal rocky habitats for conservation. We analysed the distribution of 548 species belonging to 8 phyla sampled in 137 assemblages in subtidal rocky areas located around Brittany, Western France. We applied the Index of Relative Rarity, a flexible method which fits rarity weights to species depending on their respective phyla. We found only weak congruence in rarity patterns among phyla, which prevented any attempt to identify surrogate phyla. This finding has important implications for the conservation of subtidal rocky habitats as it means that there is no shortcut to monitor their rarity: working on a subset of phyla would imply a biased evaluation of biodiversity. Consequently, we propose a multi-phyla Index of Relative Rarity combining all phyla which allowed us to successfully describe rarity patterns across all sampled sites.},
keywords = {occurrence-based rarity, subtidal conservation},
issn = {1470-160X},
doi = {10.1016/j.ecolind.2017.02.012},
url = {http://dx.doi.org/10.1016/j.ecolind.2017.02.012},
author = {Leroy, Boris and R{\'e}gis Gallon and Eric Feunteun and Robuchon, Marine and Fr{\'e}d{\'e}ric Ysnel}
}
@article {6667,
title = {Dynamics of particulate organic matter composition in coastal systems: A spatio-temporal study at multi-systems scale},
journal = {Progress in Oceanography},
volume = {156},
year = {2017},
pages = {221-239},
abstract = {In coastal systems, the multiplicity of sources fueling the pool of particulate organic matter (POM) leads to divergent estimations of POM composition. Eleven systems (two littoral systems, eight embayments and semi-enclosed systems and one estuary) distributed along the three maritime fa{\c c}ades of France were studied for two to eight years in order to quantify the relative contribution of organic matter sources to the surface-water POM pool in coastal systems. This study was based on carbon and nitrogen elemental and isotopic ratios, used for running mixing models. The POM of the estuary is dominated by terrestrial material (93\% on average), whereas the POM of the other systems is dominated by phytoplankton (84\% on average). Nevertheless, for the latter systems, the POM composition varies in space, with (1) systems where POM is highly composed of phytoplankton (>=93\%), (2) systems characterized by a non-negligible contribution of benthic (8{\textendash}19\%) and/or river (7{\textendash}19\%) POM sources, and (3) the Mediterranean systems characterized by the contribution of diazotroph organisms (ca. 14\%). A continent-to-ocean gradient of river and/or benthic POM contribution is observed. Finally, time series reveal (1) seasonal variations of POM composition, (2) differences in seasonality between systems, and (3) an inshore-offshore gradient of seasonality within each system that were sampled at several stations. Spatial and seasonal patterns of POM composition are mainly due to local to regional processes such as hydrodynamics and sedimentary hydrodynamic (e.g. resuspension processes, changes in river flows, wind patterns influencing along-shore currents) but also due to the geomorphology of the systems (depth of the water column, distance to the shore). Future studies investigating the link between these forcings and POM composition would help to better understand the dynamics of POM composition in coastal systems. {\textcopyright} 2017 Elsevier Ltd},
keywords = {bacterium, benthos, biogeochemistry, Biological materials, C and n stable isotopes, C:N ratio, Carbon, carbon isotope, Coastal systems, coastal zone, Fluid dynamics, France, geomorphology, Hydrodynamics, Isotopes, isotopic ratio, Mediterranean sea, Meta analysis, meta-analysis, Mixing, Mixing models, nitrogen isotope, Organic compounds, particulate organic matter, Particulate organic matters, Phytoplankton, prokaryote, Rivers, seasonality, spatiotemporal analysis, stable isotope, Surface water, Surface waters, terrestrial deposit, Time series},
issn = {00796611},
doi = {10.1016/j.pocean.2017.03.001},
url = {https://www.sciencedirect.com/science/article/abs/pii/S0079661116301914},
author = {Li{\'e}nart, Camilla and Savoye, Nicolas and Bozec, Yann and Elsa Breton and Conan, Pascal and David, Val{\'e}rie and Eric Feunteun and Karine Granger{\'e} and Kerherv{\'e}, P. and Lebreton, B. and S{\'e}bastien Lefebvre and St{\'e}phane L{\textquoteright}Helguen and Mousseau, Laure and Raimbault, P and Richard, P. and Riera, P. and Sauriau, P.-G. and Gauthier Schaal and Aubert, F. and Aubin, S. and Bichon, S. and Boinet, C. and Bourasseau, L. and Br{\'e}ret, M. and Caparros, J. and Cariou, T. and Charlier, K. and Pascal Claquin and Vincent Cornille and Corre, A.-M. and Costes, L. and Crispi, O. and Muriel Crouvoisier and Czamanski, M. and Del Amo, Y. and Derriennic, H. and Dindinaud, F. and Durozier, M. and Hanquiez, V. and Antoine Nowaczyk and Devesa, J. and Ferreira, S. and Fornier, M. and Garcia, F. and Garcia, N. and Geslin, S. and Emilie Grossteffan and Gueux, A. and Guillaudeau, J. and Guillou, G. and Joly, O. and Lachauss{\'e}e, N. and Lafont, M. and Lamoureux, J. and Lecuyer, E. and Lehodey, J.-P. and Lemeille, D. and Leroux, C. and Mac{\'e}, E. and Maria, E. and Pineau, P. and Petit, F. and Pujo-Pay, M. and Rimelin-Maury, P. and Sultan, E.}
}
@article {G{\'e}rard20172211,
title = {Metazoan parasite communities in Alosa alosa (Linnaeus, 1758) and Alosa fallax (Lac{\'e}p{\`e}de, 1803) (Clupeidae) from North-East Atlantic coastal waters and connected rivers},
journal = {Parasitology Research},
volume = {116},
number = {8},
year = {2017},
note = {cited By 1},
pages = {2211-2230},
doi = {10.1007/s00436-017-5525-8},
url = {https://link.springer.com/article/10.1007\%2Fs00436-017-5525-8},
author = {G{\'e}rard, C. and Herv{\'e}, M. and Gay, M. and Bourgau, O. and Eric Feunteun and Anthony Acou and R{\'e}veillac, E.}
}
@article {Houssard201749,
title = {Trophic position increases with thermocline depth in yellowfin and bigeye tuna across the Western and Central Pacific Ocean},
journal = {Progress in Oceanography},
volume = {154},
year = {2017},
note = {cited By 12},
pages = {49-63},
doi = {10.1016/j.pocean.2017.04.008},
url = {https://www.sciencedirect.com/science/article/pii/S007966111630177X},
author = {Houssard, P. and Lorrain, A. and Tremblay-Boyer, L. and Allain, V. and Graham, B.S. and Menkes, C.E. and Pethybridge, H. and Couturier, L.I.E. and Point, D. and Leroy, Bruno and Receveur, A. and Hunt, B.P.V. and Vourey, E. and Bonnet, S. and Rodier, M. and Raimbault, P. and Eric Feunteun and Kuhnert, P.M. and Munaron, J.-M. and Lebreton, B. and Otake, T. and Letourneur, Y.}
}
@article {Boulenger2016281,
title = {Difference in factors explaining growth rate variability in European eel subpopulations: The possible role of habitat carrying capacity},
journal = {Ecology of Freshwater Fish},
volume = {25},
number = {2},
year = {2016},
note = {cited By 1},
pages = {281-294},
doi = {10.1111/eff.12209},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/eff.12209},
author = {Boulenger, C. and Crivelli, A.J. and Charrier, F. and Roussel, J.-M. and Eric Feunteun and Anthony Acou}
}
@article {Trancart20169,
title = {Difference in responses of two coastal species to fluctuating salinities and temperatures: Potential modification of specific distribution areas in the context of global change},
journal = {Estuarine, Coastal and Shelf Science},
volume = {173},
year = {2016},
note = {cited By 3},
pages = {9-15},
doi = {10.1016/j.ecss.2016.02.012},
url = {https://www.sciencedirect.com/science/article/pii/S0272771416300555},
author = {Thomas Trancart and Eric Feunteun and Lefran{\c c}ois, C. and Anthony Acou and Boinet, C. and Carpentier, A.}
}
@article {Lamy201629,
title = {Dinard Herbarium: History of a Marine Station1},
journal = {Cryptogamie, Algologie},
volume = {37},
number = {1},
year = {2016},
note = {cited By 2},
pages = {29-45},
doi = {10.7872/crya/v37.iss1.2016.29},
url = {https://bioone.org/journals/Cryptogamie-Algologie/volume-37/issue-1/v37.iss1.2016.29/Dinard-Herbarium-History-of-a-Marine-Station1/10.7872/crya/v37.iss1.2016.29.short},
author = {Lamy, Dominique and Robuchon, Marine and Kervran, L. and Dennetiere, B. and Eric Feunteun and Le Gall, L.}
}
@article {Besson2016779,
title = {Disrupted downstream migration behaviour of European silver eels (Anguilla anguilla, L.) in an obstructed river},
journal = {Environmental Biology of Fishes},
volume = {99},
number = {10},
year = {2016},
note = {cited By 13},
pages = {779-791},
doi = {10.1007/s10641-016-0522-9},
url = {https://link.springer.com/article/10.1007/s10641-016-0522-9},
author = {Besson, M.L. and Thomas Trancart and Anthony Acou and Charrier, F. and Mazel, V. and Legault, A. and Eric Feunteun}
}
@article {4803,
title = {Empirical observations of the spawning migration of European eels: The long and dangerous road to the Sargasso Sea.},
journal = {Science Advances},
year = {2016},
abstract = {The spawning migration of the European eel (Anguilla anguilla\ L.) to the Sargasso Sea is one of the greatest animal migrations. However, the duration and route of the migration remain uncertain. Using fishery data from 20 rivers across Europe, we show that most eels begin their oceanic migration between August and December. We used electronic tagging techniques to map the oceanic migration from eels released from four regions in Europe. Of 707 eels tagged, we received 206 data sets. Many migrations ended soon after release because of predation events, but we were able to reconstruct in detail the migration routes of \>80 eels. The route extended from western mainland Europe to the Azores region, more than 5000 km toward the Sargasso Sea. All eels exhibited diel vertical migrations, moving from deeper water during the day into shallower water at night. The range of migration speeds was 3 to 47 km day-1. Using data from larval surveys in the Sargasso Sea, we show that spawning likely begins in December and peaks in February. Synthesizing these results, we show that the timing of autumn escapement and the rate of migration are inconsistent with the century-long held assumption that eels spawn as a single reproductive cohort in the springtime following their escapement. Instead, we suggest that European eels adopt a mixed migratory strategy, with some individuals able to achieve a rapid migration, whereas others arrive only in time for the following spawning season. Our results have consequences for eel management.},
doi = {10.1126/sciadv.1501694},
url = {https://advances.sciencemag.org/content/2/10/e1501694},
author = {D. Righton and H. Westerberg and Eric Feunteun and F. Okland and P. Gargan and E. Amilhat and J. Metcalfe and J. Lobon-Cervia and N. Sj{\"o}berg and J. Simon and Anthony Acou and M. Vedor and A. Walker and Thomas Trancart and U Br{\"a}mick and K. Aarestrup}
}
@article {Boulenger2016947,
title = {Factors determining survival of European eels in two unexploited sub-populations},
journal = {Freshwater Biology},
volume = {61},
number = {6},
year = {2016},
note = {cited By 3},
pages = {947-962},
doi = {10.1111/fwb.12759},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/fwb.12759},
author = {Boulenger, C. and Anthony Acou and Gimenez, O. and Charrier, F. and Tremblay, J. and Eric Feunteun}
}
@article {4226,
title = {Geographic variation in stable isotopic and fatty acid composition of anguilliform leptocephali and particulate organic matter in the South Pacific},
journal = {Marine Ecology and Progress Series},
volume = {544},
year = {2016},
pages = {225-241},
abstract = {

The feeding ecology of leptocephali has remained poorly understood because they apparently feed on particulate organic matter (POM), which varies in composition, and it is unclear which components of the POM they assimilate. The δ13C and δ15N stable isotope (SI) and fatty acid (FA) compositions of 3 families of leptocephali and POM were compared in 3 latitudinal current zones of the western South Pacific. The δ15N signatures of leptocephali and POM overlapped, with both having their lowest values in the southern current zone. POM in general (across all zones) contained 38 FAs and was rich in saturated FAs (SFA) (16:0, 18:0, 14:0), while leptocephali contained 50 FAs, with high proportions of 16:0, and higher contributions of 22:6ω3, 20:5ω3, 18:1ω9, 16:1ω7 and other FAs than found in the POM. Serrivomeridae leptocephali in the north had higher δ15N signatures and were also distinguished from Nemichthyidae and Muraenidae larvae by their FA compositions (higher SFAs, lower 22:6ω3 and 20:5ω3). Although SI signatures of the Serrivomeridae larvae did not clearly vary with size, 16:0 and 18:0 FA proportions decreased with increasing larval size, and 22:6ω3 and 16:1ω7 increased in larger larvae. Correspondences between the latitudinal variations in nitrogen SI signatures and FA compositions of POM with those of leptocephali and the presence of FA markers of both autotrophic and heterotrophic organisms were consistent with leptocephali feeding on POM. POM can contain various materials from primary producers and heterotrophic microorganisms, but differences in the SI signatures and FA compositions in leptocephali remain to be explained through further research.